CLOSE BOND: Nanny Yoselyn Ortega and her dad, Rafael, sit with two of the Krim kids, Nessie and Lucia. (
)

Relatives of the nanny who allegedly killed two angelic children under her care on the Upper West Side were shattered by the loss of the kids they had loved like their own family.

Milaydys Ortega, sister of accused killer Yoselyn Ortega, was overcome with grief yesterday — and said her sister gave no indication anything was wrong when they last spoke, days before Thursday’s massacre.

“Only God knows. Now there are two families that are destroyed,” the tearful woman told The Post at the home of her father in Santiago, Dominican Republic.

The father, Rafael, was too distraught to speak. Yoselyn Ortega, 50, was on a ventilator yesterday at New York Hospital and unable to speak after stabbing her own throat with such force that she broke a bone in her neck.

The suicide attempt came moments after she allegedly butchered Lucia and Leo Krim, ages 6 and 2.

The unspeakable murders shattered a bond between the families that had been forming since Yoselyn began caring for the children in 2010.

The Krim family had even visited them in the Dominican Republic during a vacation and were thinking about buying a home there.

Milaydys clutched a copy of Friday’s Post, which featured a picture of mother Marina Krim wailing in an ambulance as she was taken from the crime scene to a hospital.